boogs
Well-Known Member
- Joined
- Jun 23, 2015
- Threads
- 8
- Messages
- 68
- Reaction score
- 25
- Location
- Ontario, Canada
- First Name
- Scott
- Vehicle(s)
- 2020 GT PP Auto
Nice find, Osofast - that sounds like it.
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Had the transmission tech drive my car. During his test drive he was watching the readings from his tools that were plugged into the diagnostic port. Noticed the pressures were too high in the trans, which in turn was causing the transmission to jerk into D and down shift rough while coming to a stop. According to the service description, he “cleared adaptive trans tables and test drove to relearn”. Transmission feels like a new replacement. Completely smooth into D and while coming to a stop.My 18 is the same way. Jerky from R to D, and downshifts extremely rough from 4 down. I tried the relearn with no joy and ended up taking it to the dealer. Tranny specialist said it was normal. Thinking about taking it back again.. Build date is around 11/17.
Can’t you accomplish the same thing by disconnecting the battery? How is what he did different?. According to the service description, he “cleared adaptive trans tables and test drove to relearn”.
This is from another thread on here:Can’t you accomplish the same thing by disconnecting the battery? How is what he did different?
Negative, I tried that twice. He went in with his diagnostic tool and adjusted the pressure while driving.Can’t you accomplish the same thing by disconnecting the battery? How is what he did different?
This is awfully involved. Most people don't live in a place where traffic and road conditions allow you to slooowwwly putt around at 1300-1600 rpm up through every gear until 55 mph. And then slooowly stop? Repeat 6 times? This procedure is not workable in the real world.Adaptive Learning Drive Cycle
Activation
NOTE: Perform the adaptive learning drive cycle on a level road surface.
NOTE: The engine and transmission must be at normal operating temperature with the transmission fluid at the correct level.
- Record then clear the DTCs (Diagnostic Trouble Codes).
- Warm the engine and transmission to normal operating temperature.
- Accelerate from a stop with light throttle (15%) ensuring that the 1-2, 2-3, 3-4, 4-5, 5-6, 6-7, 7-8 shifts occur at engine speeds between 1300-1600 rpm.
- Continue to accelerate (may apply slightly more throttle after 7-8 upshift at 32-38 mph (51-61 km/h) until you achieve 55 mph (88 km/h) and the 8-9 and 9-10 shifts complete.
- Brake very gently to a complete stop and hold foot on brake for five (5) seconds.
- Perform a Neutral to Reverse engagement.
- Repeat Steps 3 through 6 six additional times.
I have a 2018 GT and the same issue with firm downshifts to 3rd gear while in Normal driving mode.Hello, I only have 2500 miles on my 2018 GT. I usually keep my driving in sport mode and sometimes
I let the car shift normally in auto mode. For some reason, when in normal auto mode, when it downshifts
From 4th to 3rd it’s rather abrupt. The shifts are fine in the other modes. Has my transmission learned this? The downshifts were very smooth when new.
I have noticed the same thing. The drop down to 3rd gear is the hardest. Rather annoying in day to day commuting.The harder I brake, the harder the down shifts are. If just let off the gas and coast, the shifts are easy and smooth. If I mash the brakes, the shifts are quicker and a lot more aggressive. I notice no difference between any particular gears individually.
November 2017.Just curious, do you know about what date your car was built? Just wondering if this is a "recent" (just-issued) TCM update or an older one.
Thanks...
If you go to Ford ETIS and set up a user ID, once logged in you can plug your VIN. Once the VIN is plugged, it will list the entire build for your vehicle - including all module update dates and revision numbers. If there is an update that supersedes the original, it will be marked as such, so you’ll know if the module needs an update.my 2018 has started doing the same thing, surges when going from P to R or P/R to D and harsh down shift from 4 to 3.
is there a way to know what TCM # the car has? and what the latest TCM # is?
Thanks